CN104955928B - Pyrans dispersant - Google Patents

Pyrans dispersant Download PDF

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CN104955928B
CN104955928B CN201380071774.7A CN201380071774A CN104955928B CN 104955928 B CN104955928 B CN 104955928B CN 201380071774 A CN201380071774 A CN 201380071774A CN 104955928 B CN104955928 B CN 104955928B
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compound
dispersant
weight
aldehyde
polyolefin
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CN104955928A (en
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R·A·伊夫兰德
M·D·吉赛尔曼
A·J·普雷斯顿
J·L·琼斯
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Lubrizol Corp
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    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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    • C10N2030/45Ash-less or low ash content
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    • C10N2040/252Diesel engines
    • C10N2040/253Small diesel engines

Abstract

Disclosed technology, which is related to, to be shown neutral pH and there is enough polarity to serve as the ashless compound of dispersant.Disclosed technology further relates to ashless compound prevents engine deposits without making sealing degrade or improve the purposes of (contributing to) corrosion in engine lubricant as dispersant.

Description

Pyrans dispersant
Background of invention
Disclosed technology is related to enough polarity to serve as the ashless compound of the non-alkaline of dispersant.Disclosed Technology further relates to ashless compound and is used as dispersant to prevent engine deposits without dropping sealing in engine lubricant Solution or the purposes for improving the corrosion of (contributing to) yellow metal.
Depending on the construction of compound, detersive or compound dispersing agent can obtain non-volatile materials, example in burning Such as boron oxide or phosphorus pentoxide.However, ashless detergent and dispersant do not include metal generally, therefore will not be obtained in burning To containing calx.The ashless dispersant of many types is as known in the art.
(1) " carboxylic dispersants " are carboxylic acid acylating agent's (acid, acid anhydride, ester etc.) and nitrogen-containing compound (such as amine), organic hydroxylic Compound (such as aliphatic compounds, including unitary and polyalcohol, or aromatic compounds, including phenol and naphthols and aromatics Amine) and/or alkaline inorganic material reaction reaction product.These reaction products include acid imide, the acid amides of carboxylic ester dispersants With ester reaction product.The example of these " carboxylic dispersants " is described in BP 1,306,529 and many United States Patent (USP)s, bag Include following:3,219,666、3,316,177、3,340,281、3,351,552、3,381,022、3,433,744、3,444,170、 3,467,668th, 3,501,405,3,542,680,3,576,743,3,632,511,4,234,435 and Re.26,433.
(2) " amine dispersant " is the reaction product of higher molecular weight aliphatic halide and amine, preferably polyalkylene polyamine.Its Example is described in for example following United States Patent (USP):3,275,554th, 3,438,757,3,454,555 and 3,565,804.
(3) " Mannich dispersant " is alkylphenol and aldehyde (especially formaldehyde) and amine (especially polyalkylene polyamine) Reaction product.Material is illustrative described in following United States Patent (USP):3,036,003、3,236,770、3,414,347、3, 448,047、3,461,172、3,539,633、3,586,629、3,591,598、3,634,515、3,725,480、3,726,882 With 3,980,569.
(4) dispersant is post-processed by making carboxylic acid, amine or Mannich dispersant and reagent such as dimercaptothiodiazole, urea, sulphur Urea, carbon disulfide, aldehyde, ketone, carboxylic acid, hydrocarbon substituted succinyl oxide, nitrile, epoxides, boron compound, phosphorus compound etc. react and obtained Arrive.This kind of examples material is described in following United States Patent (USP):3,200,107、3,282,955、3,367,943、3,513,093、 3,639,242nd, 3,649,659,3,442,808,3,455,832,3,579,450,3,600,372,3,702,757 and 3,708, 422。
(5) polymeric dispersant is oil-soluble monomer such as decyl-octyl methacrylate, vinyl decyl ether and high molecular weight olefin With the monomer comprising polar substituent such as acrylate or acrylamide and poly- (ethylene oxide)-substitutional crylic acid The copolymer of ester.The example of its polymeric dispersant is disclosed in following United States Patent (USP):3,329,658、3449,250、3,519, 656th, 3,666,730,3,687,849 and 3,702,300.
Disclosure of the above-mentioned patent on ashless dispersant is incorporated herein by quoting.
Ashless dispersant is the important additives in engine lubricant for numerous purposes.Dispersant moistens in engine One function in lubrication prescription is to maintain solid particle suspension, thus controls undesired engine deposits.However, dispersant exists Handling rate in engine is higher, and dispersant may more cause engine sealing degraded and corrosion.Accordingly, it is desirable to provide enough Polarity is to serve as dispersant, but the ashless compound for not causing sealing to degrade or corrode.
Summary of the invention
Inventor is generated with enough polarity to serve as the ashless compound of the non-alkaline of dispersant.
One aspect of the invention is related to ashless compound, and it includes long chain hydrocarbon groups, preferably long chain olefinic unsaturated alkyl, example As polyolefin is for example poly- (isobutene) (" PIB "), the reaction with aldehyde such as formaldehyde either its derivative or reactive equivalent or ketone Product.
In one embodiment, producing the reaction of reaction product may include that acid catalysis Alder-ene reactions or Prins are anti- At least one of answer.
In one embodiment, ashless compound reaction product can be that alkyl substitutes cyclic ether compounds.Alkyl substitutes Cyclic ether compounds can include by the ring group with 5 carbon atoms and 1 oxygen atom into cyclic ethers.Cyclic ethers can have 0 or 1 interior alkene Belong to double bond.At least one in 5 carbon atoms of cyclic ethers can be by long chain hydrocarbon groups, such as polyolefin, including PIB substitutes.Equally, ring One in 5 carbon atoms of ether can be substituted by the short-chain hydrocarbon group with 1 to about 10 carbon atom, or necessary amounts hydrogen with complete Chemical valence at substitution carbon atom.It is preferred that long chain hydrocarbon groups, such as polyolefin/PIB are substituted by what is separated with the oxygen atom of cyclic ethers At least one carbon atom on cyclic ethers.
In one embodiment, alkyl substitution cyclic ether compounds can be polyolefin substituted-dihydro pyrans.
In another embodiment, alkyl substitution cyclic ether compounds can be polyolefin substituted-tetrahydro pyrans.
In another embodiment, alkyl substitution cyclic ether compounds can include the compound of formula 1:
Wherein:
R、R1And R2It can be independently following at least one:(1) long chain hydrocarbon groups, or (2) H,
r1-r7It can be independently following at least one:(1) H, (2) short-chain hydrocarbon group, (3) by with by with from ring-type ether ring Upper adjacent carbon atom " r " interaction formed interior olefinic double bond, and (4) be not present with contribute to by with phase on ring-type ether ring " r " or " R " substituent with carbon atom interacts the outer olefinic double bond to be formed.
Alkyl substitution cyclic ether compounds an embodiment can be the compound of formula 1, wherein for 140 to about 5000Mn PIB, R1、R2And r1-r3In each, r6And r7For H, and r4And r5Olefinic double bond in interaction formation.
Surprisingly, alkyl substitution cyclic ether compounds described herein contribute to the cleaning for improving engine lubricant to inventor Property.In addition, alkyl substitution cyclic ether compounds described herein do not influence engine sealing or cause to corrode.
Therefore, another aspect of the present invention is a kind of composition, the composition to include:(A) there is the oil of lubricant viscosity, and (B) one in the embodiment above of alkyl substitution cyclic ether compounds.
In one embodiment, composition can optionally include (C) dispersant, and the dispersant includes carboxylic acid, amine, Manny At least one of uncommon, post processing or polymeric dispersant.It is preferred that dispersant is carboxylic dispersants, most preferably PIB- succinyls are sub- Amine.In one embodiment, composition can include the carboxylic dispersants based on the weight % of active material about 0.01 to about 20.
In yet another embodiment, the present invention relates to the method for operation engine, methods described to include:(1) to engine Middle infeed composition, the composition, which includes (A), has the oil of lubricant viscosity, and (B) alkyl substitutes cyclic ethers as described herein At least one of compound and optional (C) carboxylic acid, amine, Mannich, post processing or polymeric dispersant, and (2) operation engine.
Detailed description of the invention
Each preferred feature and embodiment are described below by non-limiting illustrate.
In one embodiment, the present invention relates to ashless compound, the ashless compound to include long chain hydrocarbon groups and aldehyde Or the reaction product of ketone.
As used herein, term " hydrocarbyl substituent " or " alkyl " are made with its conventional meaning well known to those skilled in the art With.Specifically, it refers to the group with the carbon atom being connected directly between on molecule remainder and mainly with hydrocarbon property.Hydrocarbon The example of base includes:Hydrocarbon substituent, including aliphatic, alicyclic and aromatic substituent;Substituted hydrocarbon substituent, that is, contain in this hair The substituent of the main hydrocarbon property of substituent or the non-hydrocarbon of its degree of functionality is not changed in bright context;With miscellaneous substituent, i.e., Similarly there is main hydrocarbon property but the substituent different from carbon is included in ring or chain.Term " hydrocarbyl substituent " or " alkyl " Be defined in disclosed application US 2010-0197536 [0137]-[0141] section and find in more detail.
The long chain hydrocarbon groups of reaction product can include about 10 to about 600 carbon atoms, it is alternatively that about 25 to about 500 carbon originals Son, or in another alternative, about 50 to about 400 carbon atoms, or about 50 to about 200 carbon atoms.It is preferred that long-chain Alkyl can be linear or branched and is made up of carbon and hydrogen atom.
It is preferred that long chain hydrocarbon groups are ethylenically unsaturated hydrocarbons base.Alkyl can have high methylvinylidene isomer content.These Including wherein at least about 50 weight %, in one embodiment, at least about 70 weight % alkyl have methyl ethenylidene end The alkyl of base.
It is preferred that long chain hydrocarbon groups can be polyolefin.Polyolefin for preparing reaction product can be homopolymer, copolymer Or interpretation.Polyolefin can be by comprising about 2 to about 16, the either polymerizable list of about 2 to about 8 or about 2 to about 6 carbon atoms It is prepared by body.Generally, polymerisable monomer include ethene, propylene, isobutene, 1- butylene, isoprene, 1,3-butadiene, decene or One or more in its mixture.
Polyolefin can be " routine " polyolefin or " high vinylidene " polyolefin and preferred " high vinylidene ".It is conventional Difference between polyolefin and high vinylidene polyolefin can be illustrated by reference to the preparation of poly- (isobutene) (" PIB ").Making In standby conventional PIB method (a), make isobutene in AlCl3In the presence of polymerization to produce mainly include three substituted olefines (III) With four substituted olefines (IV) end group and only very low amount (such as less than 20%) chain includes the polymer of terminal vinylidene (I) Mixture.In alternative (b), make isobutene in BF3It polymerize in the presence of catalyst to produce mainly (for example, at least 70%) mixture of the polymer comprising terminal vinylidene, less amount of four substitution end group and other structures.In alternative The material of preparation, and sometimes referred to as " high vinylidene PIB ", is also described in United States Patent (USP) 6, and 165,235, in table 1.
The representative instance of polyolefin includes PIB;Polypropylene;Polyethylene;Copolymer derived from isobutene and butadiene;Spread out It is born from the copolymer of isobutene and isoprene;Or its mixture.Useful polyolefin includes having 140-5000, in another feelings 400-2500 under condition, in still other cases 140 or 500 to 1500 number-average molecular weight PIB.PIB can have 5-69%, 50-69% in the case of two kinds, in a third case 50-95% ethenylidene double bond content.
In formation in the reaction product, the relative concentration of the reaction condition and this kind of component of long chain hydrocarbon groups and aldehydes or ketones Should be preferably enough so that most of long chain hydrocarbon groups are reacted with least one aldehydes or ketones molecule.That is, for the optimal of dispersant Performance, preferably no more than 30 weight % polyisobutene or other long chain hydrocarbon groups should keep unreacted in gained dispersant.It is preferred that It should keep not more than 25% unreacted long chain hydrocarbon groups, more preferably no more than 20%.Ensure the measure of the condition of enough extents of reaction In the ability of those skilled in the art.
Aldehydes or ketones reactant for preparing reaction product is the carbonyls different from carboxyl substituted carbonyl compound (i.e. non-carboxyl substituted carbonyl compound).Suitable compound includes those with general formula R C (O) R', and wherein R and R' are each It independently is H or there is about 1 to about 10, the alkyl of preferably 2 to about 4 carbon atoms.As noted in the discussion, alkyl can wrap Containing the other groups or hetero atom for not disturbing the inventive method and product.It is preferred that aldehydes or ketones include 1 to about 12 carbon atom.
Aldehyde for forming reaction product can have 1-10, either 1-8 or 1-6 carbon atom.Suitable aldehyde includes first Aldehyde, acetaldehyde, propionic aldehyde, butyraldehyde, isobutylaldehyde, valeral, hexanal, enanthaldehyde, octanal, benzaldehyde and more advanced aldehyde.Usual other aldehyde, such as Dialdehyde, especially glyoxal are useful, but generally preferably single aldehyde.In one embodiment, non-carboxyl substituted carbonyl chemical combination Thing is that alkyl substitutes aldehyde, and preferably alkyl substitutes single aldehyde.
Most preferred aldehyde is formaldehyde, and it can be provided as the aqueous solution of commonly referred to as formalin, but more generally as oligomeric Formaldehyde is used with polymer form, its reactive equivalent or source for formaldehyde.Other reactive equivalents include hydrate Or cyclic trimer.In one embodiment, it is made up of for forming the aldehyde of reaction product single aldehyde such as formaldehyde.
Suitable ketone includes acetone, butanone, MEK and other ketone.It is preferred that one kind in alkyl is methyl.
The mixture of two or more aldehyde and/or ketone is also useful.In one embodiment, react by long chain hydrocarbons Base such as PIB, and aldehyde, preferably single aldehydes or ketones composition.
The reaction prepared in reaction product is related to one or more equivalent acid additions by aldehydes or ketones on polyolefin.Instead It is able to should be reacted by two kinds of neighbouring Alder-ene, the closed loop of acid regulation and control thereafter, or Prins chemistry are carried out.In an embodiment party In case, reaction (such as Alder-ene or Prins reactions) can be carried out in the absence of underwater.In another embodiment, reaction can Carried out in dry conditions using solid aldehyde such as solid formaldehyde (i.e. paraformaldehyde).
In one embodiment, reaction product includes alkyl substitution cyclic ether compounds.Alkyl substitution cyclic ether compounds can Comprising by the ring group with 5 carbon atoms and 1 oxygen atom into cyclic ethers.The ring of cyclic ethers can include 0 interior olefinic double bond, or 1 interior olefinic double bond.In addition, at least one in 5 carbon atoms of ring-type ether ring can be substituted by following group:(1) long chain hydrocarbons Base, such as polyolefin as described above, (2) short-chain hydrocarbon group, or (3) completion substitute the hydrogen of the required number of the chemical valence on carbon.
Long chain hydrocarbon groups can be polyolefin as described above.When ring-type ether ring by long chain hydrocarbon groups for example polyolefin substitutes when, long-chain Alkyl is incorporated on carbon atom, and wherein at least one carbon atom separates with the oxygen atom of ring-type ether ring.
Short-chain hydrocarbon group may be incorporated in any one in 5 carbon atoms of ring-type ether ring on.Short-chain hydrocarbon group preferably comprises 1 to about 10 carbon atoms, it is alternatively that 1 to about 8 carbon atom, or alternately, 1 to about 6 carbon atom.Short-chain hydrocarbon group is excellent Elect as linear or branched, but can also include aryl.It is preferred that short-chain hydrocarbon group is made up of carbon and hydrogen atom, but it can also include it is miscellaneous Atom, such as nitrogen, oxygen and sulphur.Hetero atom can especially exist as a part for heteroaryl.Short-chain hydrocarbon group can be hydrogenation, example Such as methyl, or olefinic double bond can be included, such as methylene.
It is well known to those skilled in the art to complete the hydrogen of the required number of chemical valence on carbon atom, wherein considering that hydrocarbon substitutes Base and any interior olefinic double bond related to the specific carbon atom.
In one embodiment, alkyl substitution cyclic ether compounds can be illustrated by the compound of formula 1:
Wherein:
R、R1And R2It can be independently following at least one:(1) long chain hydrocarbon groups as defined above, preferably as above Defined polyolefin, most preferably as hereinbefore defined and there is 140-5000, in another case 400-2500, in another feelings The PIB of 140 or 500 to 1500 number-average molecular weight under condition, or (2) H,
r1-r7It can be independently following at least one:(1) H, (2) short-chain hydrocarbon group as defined above, (3) by from The r of adjacent carbon atom reacts to each other the interior olefinic double bond to be formed on ring-type ether ring, and (4) be not present with contribute to by with identical ring The r or R substituent of shape ether ring carbon atom interact the outer olefinic double bond to be formed.
In a preferred embodiment, formula 1 can be the polyolefin substituted-dihydro pyrans for example represented by formula 1 (a), its Middle R is or PIB, R more particularly as defined above to about 5000Mn with 1401、R2And r1-r3In each, r6And r7For H, and r4And r5Olefinic double bond in interaction formation.
In another preferred embodiment of the present, formula 1 can be the polyolefin substituted-tetrahydro pyrans for example represented by formula 1 (b), its Middle R is or PIB more particularly as defined above, wherein r to about 5000Mn with 1404Outside double bond is contributed to, and R1、R2And r1-r3And r5-r7Respectively H.
In another optional embodiment, formula 1 can be the polyolefin substituted-tetrahydro pyrans for example represented by formula 1 (c), its Middle R1For with 140 to about 5000Mn, or PIB, R and r more particularly as defined above4Interaction, which is formed, has 1 Carbon atom and the short-chain hydrocarbon group with olefinic double bond, i.e. methylene, and R2、r1-r3And r5-r7Respectively H.
One aspect of the present invention is engine lubricant, and it, which includes (A), has the oil of lubricant viscosity, and (B) ashless compound, I.e. above-mentioned alkyl substitution cyclic ether compounds.
In one embodiment, (B) ashless compound described herein can using based on active material as lubricating composition 0.01 weight % to 20 weight %, either 0.05 weight % to 10 weight % or 0.08 weight % be to 5 weight %, or 0.1 weight % to 3 weight % scope is added in the oil that (A) has lubricant viscosity.
(A) oil with lubricant viscosity may include for example natural and artificial oil, derived from being hydrocracked, hydrogenate and be hydrogenated with essence The oil of system, do not refine, refine and refined oil and its mixture again.Oil with lubricant viscosity also can be such as American Definition described in Petroleum Institute (API) Base Oil Interchangeability Guidelines.
The various oily more comprehensively detailed descriptions that can be used in the present invention can disclosed in 15 days December in 2011 Gieselman etc. Found in the U.S. Publication #2011/0306528 of people [0104]-[0111] section.
Lubricant compositions can be concentrate and/or prepare the form of lubricant completely.If ashless dispersants of the present invention Agent is the form (it can be combined completely or partially to form final lubricant with other oil) of concentrate, then ashless dispersant Include 1 with the oil with lubricant viscosity and/or with the ratio of flux oil:99-99:1 weight meter, or 80:20-10:90 weight meters Scope.
Composition can optionally include (C) dispersant, and the dispersant includes carboxylic acid, amine, Mannich, post processing and polymerization point At least one of powder.
Dispersant is commonly referred to as ashless dispersant, because before being mixed into lubricant oil composite, they do not include into ash Metal, and they add lubricant with polymeric dispersant before generally do not contribute any into grey metal.Ashless type dispersants It is characterized in the polar group being connected on higher molecular weight hydrocarbon chain.Typical ashless dispersant includes carboxylic dispersants, such as The long chain alkene base succinimide of N- substitutions.The example of the long chain alkene base succinimide of N- substitutions includes PIB substituents Number-average molecular weight be 350-5000, or 500-3000 PIB succinimides.Succinimide dispersants and its preparation are public Open in such as United States Patent (USP) 4,234,435.Succinimide dispersants are usually usual poly- (vinylamine) or aromatics by polyamines The acid imide that polyamines such as aminodiphenylamine (ADPA) is formed.
In one embodiment, lubricant compositions can further include amine dispersant, for example, PIB succinic anhydrides and Amine, preferably polyamines, preferred aliphatic series polyamines, such as ethylene (i.e. poly- (vinylamine)), propylidene polyamines, butylidene polyamines or The reaction product of its mixture of two or more of person.Aliphatic polyamines can be ethylene.Aliphatic polyamines may be selected from second Diamines, diethylenetriamines, trien, tetren, penten, polyamines kettle it is residual or its two kinds or More kinds of mixtures.
In one embodiment, lubricant compositions are further 350- derived from number-average molecular weight comprising at least one 5000 or 500-3000 PIB PIB succinimide dispersants.PIB succinimides can individually or with other dispersant groups Close and use.
Another kind of ashless dispersant is Mannich base.Mannich dispersant is alkylphenol and aldehyde (especially formaldehyde) and amine The reaction product of (especially polyalkylene polyamine).Alkyl generally comprises at least 30 carbon atoms.
Also can by dispersant by conventional method by being post-processed with the reaction of any of plurality of reagents.Wherein, this It is a little for boron, urea, thiocarbamide, dimercaptothiodiazole, carbon disulfide, aldehyde, ketone, carboxylic acid, the succinic anhydrides of hydrocarbon substitution, maleic anhydride, nitrile, Epoxides, phosphorus compound and/or metallic compound.
Optional dispersant can also be polymeric dispersant.Polymeric dispersant be oil-soluble monomer such as decyl-octyl methacrylate, Vinyl decyl ether and high molecular weight olefin, with the monomer comprising polar substituent such as acrylate or acrylamide With the copolymer of poly- (ethylene oxide)-substituted acrylate.
(C) optionally dispersant can be with 0 weight % of lubricating composition to 20 weight %, or 0.1 weight % to 15 weights % is measured, either 0.1 weight % to 10 weight % or 1 weight % to 6 weight %, or 3 weight % to 12 weight % are present.
Engine lubricant can also include conventional detersive (being prepared by method as known in the art).Engine lubrication The most frequently used detersive (is typically based on the metal hydrogen-oxygen of metal such as calcium, magnesium, zinc or sodium due to alkaline metal-containing compound in field Compound, oxide or carbonate) presence and obtain its most or all basicity.Also referred to as parlkaline or hyperalkaline salt is this kind of Metal overbased detergent is usually single-phase homogeneous Newtonian systems, it is characterized in that tenor exceedes according to metal and and metal In the stoichiometry of the specific acidic organic compound of reaction and existing for meeting.Parlkaline material is generally (logical by acid material Normal inorganic acid or lower level carboxylic acid such as carbon dioxide) and acidic organic compound (also referred to as matrix), the gold of stoichiometric excess Belong to the mixture of alkali, generally in inert organic solvents (such as mineral oil, naphtha, toluene, two for acid organic media Toluene) reaction medium in react and prepare.A small amount of accelerator such as phenol or alcohol are there is typically further, and it is few in some cases Measure water.The acid organic substrate generally carbon atom with enough numbers is to provide the solubility in oil.
Parlkaline may be selected from without thiophenol salt, sulfur-bearing phenates, sulfonate, salixarate, salicylic acid containing metal detergent Salt and its mixture, or its boration equivalent.Overbased detergent boric acid agent such as Boric acid boron can be acidified.
Overbased detergent is as known in the art.In one embodiment, sulfonate detergent can be with At least 8 metal than dominant linear alkylbenzenesulfonate detersive, such as the of U.S. Patent application 2005-065045 [0026]-[0037] described in section.Term " metal ratio " is the total yield of metal and the ratio between the equivalent of acidic organic compound.In Property metal salt have 1 metal ratio.With with gold of the salt of 4.5 times of metals as many with 3.5 equivalents present in normal salt Category is excessive, or 4.5 ratio.
In one embodiment, parlkaline is calcium or magnesium overbased detergent containing metal detergent.In an embodiment party In case, lubricating composition includes overbased calcium sulfonate, parlkaline calcium phenoxide or its mixture.Overbased detergent, which can include, to be had At least 3 metal than sulfoacid calcium.
Overbased detergent of the present invention can exist with 0.05 weight % of composition to 5 weight % amount.In other realities Apply in scheme, overbased detergent can be with the weight of the 0.1% of lubricating composition, 0.3% or 0.5% to 3.2%, 1.7% or 0.9 % is measured to exist.Similarly, overbased detergent can be suitable for being supplied to lubricating composition 1TBN to 10TBN amount to exist. In other embodiments, overbased detergent is to be supplied to lubricating composition 1.5TBN or 2TBN to 3TBN, 5TBN or 7TBN Amount is present.
Engine lubricant can also include other performance additive.Other performance additive can include metal deactivator, glue Spend modifier, friction improver, antiwear additive, corrosion inhibitor, dispersant viscosity modifiers, extreme pressure agent, anti-scratch liniment, anti-oxidant Agent, foam inhibitor, demulsifying agent, pour-point depressant, sealing at least one of sweller and its mixture.Generally, prepare completely Lubricating oil includes the one or more in these performance additives.
In one embodiment, it is existing optionally performance additive total combined amount can be lubricating composition 0 or 0.01 weight % to 50 weight %, in another embodiment, 0 or 0.01 to 40 weight %, in another embodiment, 0 or 0.01 to 30 weight %, in another embodiment, 0.05 or 0.1 or 0.5 to 20 weight %.In one embodiment, deposit Other performance additive compound total combined amount based on oil-free for composition 0 weight % to 25 weight % or 0.01 weight Measure % to 20 weight %.Although one or more other performance additives may be present, usual other performance additive is not with each other Same amount is present.
Lubricating composition can be used in internal combustion engine.Internal combustion engine can be with or without scheme for exhaust gas circulation system.
In one embodiment, internal combustion engine can be diesel combustion engine (usual large diesel engine), gasoline combustion Engine, combustion of natural gas engine or blend gasoline/alcohol combustion engine.In one embodiment, internal combustion engine can be Diesel combustion engine, it is in another embodiment gasoline combustion engine.In one embodiment, engine can be Spark ignition engine, it is compression engine in one embodiment.
Internal combustion engine can be 2 strokes or 4 Stroke Engines.Suitable internal combustion engine includes marine diesel, aviation piston Formula engine, low load diesel engine and automobile and truck engine.
Lubricant compositions for internal combustion engine may be adapted to any engine lubricant but regardless of sulphur, phosphorus or sulfate ash (ASTM D-874) content.The sulfur content of engine oil lubricants can be 1 weight % or less, or 0.8 weight % or more Lack, either 0.5 weight % or less or 0.3 weight % or less.In one embodiment, sulfur content can be 0.001 Weight % to 0.5 weight %, or 0.01 weight % to 0.3 weight %.Phosphorus content can be 0.2 weight % or less, or 0.1 weight % or less, either 0.085 weight % or less or even 0.06 weight % or less, 0.055 weight % or Less, or 0.05 weight % or less.In one embodiment, phosphorus content can be 100ppm to 1000ppm, or 325ppm to 700ppm.Total sulfate ash content can be 2 weight % or less, either 1.5 weight % or less or 1.1 Weight % or less, either 1 weight % or less or 0.8 weight % or less, or 0.5 weight % or less.At one In embodiment, sulfate ash content can be 0.05 weight % to 0.9 weight %, or 0.1 weight % to 0.2 weight % is extremely 0.45 weight %.
In one embodiment, lubricating composition is engine oil, and wherein lubricating composition is characterized in as follows At least one of:(i) 0.5 weight % or less sulfur content, (ii) 0.1 weight % or less phosphorus content, and (iii) 1.5 Weight % or less sulfate ash content.
In one embodiment, lubricating composition includes and is less than 1.5 weight %, either less than 1.25% or is less than 1.0% unreacted polyisobutene.
Ashless dispersants immunomodulator compounds and lubricating composition comprising ashless dispersants immunomodulator compounds can be by by ashless compounds Or the lubricating composition comprising ashless compound feeds in engine and operates engine and be used to improve the deposition in engine In the method for one in physical performance, sealing property and corrosive nature.
In one embodiment, ashless dispersants immunomodulator compounds do not contribute to total acid number (TAN) or total base number (TBN), i.e., The TAN and TBN of compound (mean that only trace is for example relevant with impurity, but not effectively assign and matching somebody with somebody substantially for 0 or essentially 0 Preparation TAN or TBN).In another embodiment, TAN be less than about 5, either in some embodiments 4 or even 3 or 2, preferably less than 1.In another embodiment, TBN be less than about 5, or in embodiments below, 4 or even 3 or 2, preferably smaller than 1.
The PIB succinimides of additional amount, such as PIB succinic anhydrides and amine, preferred aliphatic series amine, preferred aliphatic series polyamines is as gathered The reaction product of ethylene (PEPA) can be used in this method.
Unless otherwise indicated, the amount of each chemical constituent is expressed as eliminating and generally may be present in commercial materials Any solvent or flux oil, i.e., based on active chemical.However, unless otherwise indicated, each chemicals or group being mentioned above Compound should be understood to containing isomers, accessory substance, derivative and generally it should be understood that be present in commerical grade it is other this The commercial grade material of class material.
Some known above-mentioned materials may interaction in final preparaton so that the component of final preparaton may be with Originally those added are different.For example, metal ion (such as detersive) it can migrate to the other acid or cloudy of other molecules Ion position.The product being consequently formed, including the product through being formed with its intended use using the present composition may not Easily description.However, all such improvement and reaction product are included within the scope of the present invention;The present invention will be upper including passing through The composition stated component mixing and prepared.
As used herein, transition phrase "comprising", " substantially by ... form " and " Consists of " definition if any, are closed Do not include the scope of the disclosure of other components or step not described in the scope of disclosed embodiment.With " bag Include ", " containing " or " being characterized in ... " synonymous transitional term "comprising" be inclusive or open, and be not excluded for other not retouching The element or method and step stated.On the contrary, transition phrase " Consists of " is not any including not described in disclosed embodiment Element, step or composition.Transition phrase " substantially by ... form " is intended to make the scope of disclosed embodiment to be limited to the material Or step, and technical staff should be understood the basic and new feature of embodiment disclosed in not substantial effect those materials or Step.Term " Consists of " and " substantially by ... form " can be used as optional embodiment for instead of in disclosure above "comprising" sentence.
Embodiment
Sample 1:The reaction product of long chain hydrocarbon groups and aldehyde
Thermocouple, inputting type agitator, nitrogen cleaning, heating mantles and the addition leakage of solid screw thread will be assembled in 1L four-neck flasks Bucket.445g 1000Mn high vinylidenes PIB is fitted into flask and cleans assembling with nitrogen (0.5scfh).Add methane Sulfonic acid (0.6g) and as stirring heats the mixture to 115 DEG C.By addition funnel the oligomeric first of 30.1g was added through 3.5 hours Aldehyde.Temperature is improved to 120 DEG C, and preparation is stirred 4 hours.Preparation is cooled to 90 DEG C and adds sodium hydroxide (in water 50%, 0.5g).Temperature is improved to 130 DEG C and stirred 1 hour.Flask is cooled to 90 DEG C and adds diatomite.By product mistake Filter to obtain 380g.
Embodiment 1:
Sample 1 is provided in following table relative to 1550Mn succinimide dispersants (succinimide) and 1000Mn PIB The contrast of total acid number (TAN), total base number (TBN) and retention factors (Rf values, the measurement of polarity).
The dispersant of table 1. contrasts
Embodiment 2:
4 kinds of mid-SAPS oil (the sulfate ash limit 0.8%) preparatons are prepared, it includes succinimide and with 3%w/w Push up the combination of the sample 1 of processing.Also preparing only has the control formulation of succinimide.According to Volkswagen VitonTM Leakage test PV-3344 tests preparaton.PV-3344 experiments are designed for assessing engine oil to Parker-Pradifa The Industry Standard Test of the influence of SRA AK6 (fluorine carbon) encapsulant.Measure the tensile strength of sample, elongation at break and split Change.Preparaton (w/w yls) and sealing result (final tensile strength and final fracture elongation intensity) are shown in table 2.It is higher Value represent preferable sealing property.
Table 2. contrasts and preparaton of the present invention
Table 2 shows that when standard succinimide dispersants are reduced sealing property is improved.The data are also shown comprising this hair Bright dispersant does not interfere with the final tensile strength of sealing, actually improves elongation at break.
Embodiment 3:
Use VolkswagenTM1.6L Diesel Intercooler test (VolkswagenTMVW TDI are tested) survey Trial preparation 1 is relative to control formulation.TDI engine tests are that the turbo-charged direct injection of 54 hours is run under specified requirements Igniter motor is tested.In off-test, with the cleannes of 0-100 grade visual evaluation piston, wherein 100 represent piston It is clean and be free of deposit.Table 3 shows all parts on piston, including groove 1-3 and the first and second platforms (land) grade point.
Table 3. contrasts and the VW TDi performances of lubricant of the present invention
Obvious groove 2 is greatly improved due to the presence of inventive dispersant in sample 1, and platform 2 also directionally changes Enter.
Most important grade point is weighted average piston grade point.The presence of inventive dispersant makes average etc. in sample 1 Level value improves almost 9 units.This is considered as the big improvement in the experiment and is directly attributed to the presence of sample 1.
Above-mentioned each file is incorporated by reference into the present invention.Any file refer to be not allow this document with Any authority obtains the qualification of prior art or forms the general knowledge of technical staff.Except embodiment China and foreign countries, or if clearly refer in addition Go out, all quantity of the amount of material, reaction condition, molecular weight, carbon number etc. should be understood to pass through described in the specification Wording " about " is modified.It should be understood that the upper and lower bound of amount described herein, scope and ratio can be combined independently.Similarly, this hair The scope and amount of bright each element can be used together with the scope or amount of any other element.As used herein, statement is " basic By ... form " allow to include not influence the considered essential characteristic of composition and the material of new feature substantially.

Claims (14)

1. ashless compound, it includes long chain olefinic unsaturated alkyl and the non-carboxyl substituted carbonyl compound selected from aldehyde and ketone Reaction product, wherein compound are polyolefin substituted-dihydro pyrans.
2. compound according to claim 1, wherein the long chain olefinic unsaturated alkyl includes 10 to 600 carbon atoms.
3. according to the compound of claim 1 or 2, wherein the long chain olefinic unsaturated alkyl is that the number with 140-5000 is equal The polyolefin of molecular weight.
4. according to the compound of claim 1 or 2, wherein the non-carboxyl substituted carbonyl compound, which is alkyl, substitutes single aldehyde.
5. according to the compound of claim 1 or 2, wherein the aldehyde is formaldehyde or its derivative or reactive equivalent.
6. according to the compound of claim 1 or 2, wherein the reaction includes acid catalysis Alder-ene reactions or Prins reactions At least one of.
7. compound according to claim 6, wherein the reaction is carried out in the absence of underwater.
8. compound according to claim 3, wherein polyolefin are the PIB with 140 to 5000 number-average molecular weight.
9. a kind of composition, it is included:(A) there is the oil of lubricant viscosity, and (B) ashless compound, it includes long chain olefinic not Saturated hydrocarbyl and the reaction product selected from aldehyde and the non-carboxyl substituted carbonyl compound of ketone, wherein compound are polyolefin substitution two Hydrogen pyrans.
10. composition according to claim 9, it also includes (C) dispersant, and the dispersant includes carboxylic dispersants, amine point Powder, Mannich dispersant, post processing at least one of dispersant or polymeric dispersant.
11. composition according to claim 10, wherein dispersant are carboxylic dispersants.
12. composition according to claim 11, wherein the carboxylic dispersants are PIB- succinimides.
13. composition according to claim 11, the carboxylic dispersants are with based on the weight of active material 0.01 to 20 % presence.
14. operating the method for engine, it includes:(1) composition is fed into engine, it is included:(A) there is lubricant viscosity Oil, and (B) ashless compound, it includes long chain olefinic unsaturated alkyl and non-carboxyl substituted carbonyl chemical combination selected from aldehyde and ketone The reaction product of thing, wherein compound are polyolefin substituted-dihydro pyrans, and (2) operation engine.
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CA2893840A1 (en) 2014-06-12
EP2928994A1 (en) 2015-10-14
KR20150093180A (en) 2015-08-17
US9695377B2 (en) 2017-07-04
CN104955928A (en) 2015-09-30
EP2928994B1 (en) 2021-04-21
US20150307804A1 (en) 2015-10-29

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